DESCRIPTION: Univen flat rubber o-ring seal for Waring blenders. This Made in USA seal is perfect for heavy duty, food service or laboratory use. A common replacement part, this seal sits between the top of the blade and the bottom of the jar. Only one seal is needed per blender. This is a high quality seal which is superior to the original seal. This American made seal is non-toxic, and is made of food safe FDA approved EPDM rubber. Measures 2.187" inside diameter x 2.895" outside diameter.